This part is a Weir assembly for the Waterway DynaFlo Plus, DynaFlo Low Prof, Round, Gray. This locking ring and telescoping weir locks to the top of your filter basket. The weir portions will move up and down with the water level. See pictures for measurements.

Used on many makes and models of spas and hot tubs, but common on 2004-2005 Gulf Coast Spas Cool Nights Series and many Hydro Spas. Includes floating weir and retaining ring.

If you need the filter basket for this weir please see Product Code: 5002687

Please Note: On 2004-2005 Gulf Coast Spas there were two styles of weirs used. This weir mates to a filter basket that has a completely rounded top. If your baskets top is not completely round and has squared off edges, please see CMP Weir Product Code: 25354W